%I #9 Jan 17 2017 19:41:06
%S 1,2,3,4,5,6,7,8,11,9,10,12,14,13,17,15,19,16,23,18,21,24,29,20,26,22,
%T 31,25,39,27,37,28,34,30,41,32,43,33,47,35,38,36,46,40,51,42,52,44,53,
%U 45,59,48,61,49,68,50,57,54,67,55,58,56,76,60,66,63,71,62,74,64,73,65,79,69,83,70,89,72,97
%N Even terms in A280864, divided by 2, in order of appearance.
%C It is known (see A280864) that this is a permutation of the natural numbers.
%H N. J. A. Sloane, <a href="/A280770/b280770.txt">Table of n, a(n) for n = 1..10486</a>
%Y Cf. A280864, A280771.
%K nonn
%O 1,2
%A _N. J. A. Sloane_, Jan 17 2017
|